Rotary gasolene-engine.



T. E. BRALEY. ROTARY GASOLENE ENGINE.

APPLICATION FILED JUNE 26, 1909.

Patented Dec. 14, 1909.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

THOMAS E. BRALEY, or non'rou, KANSAS.

' ROTARY eiisoLnNE-ENGINE. 1

To all whom it may concern:

Be it known that I, THOMAS .E. BRALEY, a citizenof the United States, residing at. Horton, in the county of Brown and State of Kansas,.have invented certain new and useful Improvements 'in Rotary Ga'solene' Engines, of which the following is a specification. I iThis invention relates'to gasolene engines,

and more particularly to an engine in which v at each reciprocation of a. piston member a fresh explosive impetus is given to the device.

A most important object of the device is to provide a novel form of piston and system of gas intake whereby compressed gas may be, supplied to the explosion chamber at each reciprocation-of the piston.

A further important object is to provide.

a novelfor'm 0fcasing.

Other objects and advantages will be apparent from the following description, and

it will be understood that changes in the specific structure shown and described may be made within the scope of the claims without-departing from the spirit of the invention.

In the drawin s forming a portion of this in which like characters of reference indicate similai' parts in the several views, .Figure 1 is a vertical cross sectional viewiofflthe device, the arrows indicating the direction ofmovement of as prior to explosion, Fig. 2 is a cross section at right angles toFig. 1, Fig. viewof one of the piston detail of one of the piston 3 is a perspective shoes, Fig. 4 is a and compression members, Fig. 5 is a side view of the rotor with the piston removed.

Referring to the drawings, there is shown a casing 10 the interior surface of which is in the form of an oval orbit, and is provided with a sparkplug 11, and an exhaust port 12 on opposite sides at its lesser'dimension. Mounted revolubly within the casing nearer one end than the other, there is a rotor 13 approximately cylindrical in shape and provided with a central circular eii-.

largement lethaving a lateral-extension l5 communicating with an annular inlet passage 16 formed on the inner face of the easing and communicating with the. supply pipes 17.

Thesurface'of the piston is provided with opposite .peri herally extending recesses 18, at one end 0 which there is formed an enpacking rings 23 having Specificationof Letters Patent. Patented Dec. 14, 1909. Application filed June as, 1909. Serial No. 504,522.

'municating with the recesses at one side and receiving pivotally therein the enlarged trunnion portion 20 of a vane. The trunnion is provided grooves 22 in which are slid'ably disposed suitable springs 21 disposed inwardly thereof to hold them in -close contact with the inner face of the pivot socket. Extending radially through the center of the rotorithere' is an intake passage 25 having at its outer extremities spring pressed valves 26 arranged to yield to outward assa'ge of gas therethrough and adapte to close tightly against inward pressure. The

passage 25 communicates centrally with each of the recesses 18 as will be observed.

It should be noted that the vanes 21 extend the full width of the casing, and are provided with longitudinallyextending rooves 27 in their edges in which are'dispos'ed ing bars28 pressed into close contact with the side walls of the casing by means of suitable springs not shown. Opening from the recess 18 between the intakes 25 and the pivoted endof the vane 21, there is a conducting passage 29, opening adjacent the opposite recess 19 outwardly of the proximal vane. This passage is provided at its outer end with a valve adapted to yield to outward ressure of gas from within, and to .close tightly against pressure from without.

Opening inwardly from the end of the recess .18 opposite the socket. 19, there is an areuate compression chamber 31, extending the full width of the rotor, the are thereof having as its center the axis of. the pivot socket 19, the inner end of this chamber communicating with the passage 25 as shown at 32. Engaged slidably in the chamber 31, there is a piston member 35 similar in form to the vanes 21, formed integral therewith and similarly provided with side compression bars 36 forming a' continuation of those 28 and being similar except that the inner ends of these have cross. portions 37. Formed ill OPPOSllZG sides of the chamber 31 adjacent its outer end, there are a series of grooves having packing bars 39 disposed therein and pressed resiliently against the piston by means of springs 24. At the junction of the piston 35 and of the vane there is formed a transverse trunnion socket 40, similar to that 21 and pivotally engaged 'therein, therc'is a shoe block 45, having a larged cylindrical socket portion 19 com packin its outer face. with sage of the freshly vaporized through the rotor asdescribed wil serve largely to cool the rotor, vanes and piston,

.a suitable recess. 47 opening from the recess duced in the explosion chamber each time .givenrthe. rotor on each rotation of each connection of the usual type may be made 'haustion ofburned gases more readily.

'cipal dif'ficulties in the operation of rotary trunnion engaged with the socket. -The outer face of the block.4=5 is curved, and adapted to engage closely against the peripheral face of the casing 10. Carried in pivot socket 19, there is a 18 adjacent the spring 48 bearing agamst the inner face of the vane 21 to'mit ate its outward movement if necessary, upon the explosion side of the chamber. f

The operation ofthe device will be readily understood, the outward'movement Offlth vanes 21 into the explosion space E drawing a charge of gas through the passages 25 am into the space under the vane and into the compression chamber 31, from whence it-is expelled and compressed in the passages 29 as -the vanes are pressed inwardly upon reaching the compression side of the chamber A. Thus a fresh charge of gas is introthe vanes pass the spark plug 11, andthe spark being properly timed, an impetus is Vane. j i

It will be understood that any suitable between the shaft of the rotor, a timing mechanism, electrical source and the spark plug, which it is not deemed necessary to illustrate.

It will be noted that. the exhaust passage extends some distance peripherally through the walls of theFca'sing, in order to allow ex- It will be readily appreciated that the as-'. aso ene thus obviating the dangers of overheating the rotor which constitutes one of the pringas engines. f

VVhat is claimed is: 1

1. A rotary gas engine comprising a casing having curved walls, a rotor mountedeccentric'ally of the casing, an igniting means carried by the; casing, saidcasing having an exhaust port spaced from the igniting means, reciprocatlng members carried by the t rotor adapted to create a vacuum spaced'inwardly thereof upon operation, said rotor having gas intake passages'therethrough opening under the reciprocating members, said rotor having also outlet passages opening atone end inwardly of the reciprocating members, and at the other end intermediately of the reciprocating members; valves disposed in the intake passages to prevent escape of gas therethrough, and valves disposed in the outlet passages to prevent ingress of gas therethrough,- said reciprocating members being constructed and adapted to draw in gas from said inlet-[passage upon -movement inone direction and to compress and expel :the gas through said outlet-passage upon reverse movement.

2. A device of the class described comprising a casing having curvate inner walls,

and having igniting means at one side and having an exhaust port spaced therefrom, a rotor mounted eccentrically within the casing, vanes pivoted upon the rotor, said rotor having. curved compression chambers formed in an are centered on the pivotal points of the vanes, slidable piston members carried in said chambers and pivotally 0011-. nectcd with the outer ends of the vanes, said vanes and pistons'being adapted to form an airtight chamber inwardly thereof when the vane is spaced outwardly of the rotor, gas inlet passages communicating with the compression chamber and spaced inwardly of the-vanes, an opening through the side of the rotor, a gas inletpassage formed in the casing and communicating with the inlet passage in the rotor and a conducting passage communicating with the. space 1n- "wardly of thevanes and opening outwardly of and adjacent the pivoted en'd'of another vane, and check valves in said inlet and conducting passages constructed and arranged to check pressure from the direction of the explosion space.' Y

In testimony whereof I afiix my signature, in presence of two witnesses. H THOMAS E. BRALEY. Witnesses:

D. F. Hover, E. \Vllovm'. 

